T-12, r. 17 - Regulation respecting road vehicles used for the transportation of school children

Full text
44.1. The driver of a school bus must, before turning on the flashing red lights and activating the stop signal in accordance with section 456 or 461 of the Highway Safety Code (chapter C-24.2), turn on the alternately flashing yellow lights referred to in the fourth paragraph of section 34 to warn drivers that the bus is preparing to stop to take on or discharge school children or persons under 18 years of age.
O.C. 643-2005, s. 9.